Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US06/833,172external-prioritypatent/US4647018A/en
Application filed by Alusuisse Lonza Services AgfiledCriticalAlusuisse Lonza Services Ag
Application grantedgrantedCritical
Publication of ATE56089T1publicationCriticalpatent/ATE56089T1/de